Qualitative Observation Of A Chemical Reaction Lab Report

1. The first experiment is Preparation of a Cobalt Amine Bromide Product ; Synthesis #3 was used to create the compound. Added 5 grams of cobalt carbonate to 20 mL of hrdrobromic acid in a beaker. Noticied a slight color change to dark purple. Solution frothed after it settled I mixed in 15mL water and

3. Removed the test tube from the flame and places a piece of moistened litmus paper in the mouth of the test tube. Identified any odor that is readily apparent by wafted the fumes toward your nose. Caution: Do not sniff

1. What type of macroscopic evidence for chemical change did you observe during this experiment? Give at least three different examples. (15 points) The main evidence of chemical change in this lab is the change in color, production of gas, and the production of precipitate.

1. Place a small amount of wax from a birthday candle into a test tube. Heat gently over a burner flame until the wax melts completely; then allow

What Is The Unknown White Compound By Alexander Medina Lab Partners Maxwell Yurs, Eugene Floersch, Mesih Harri Abstract A white compound is found, but its identity is unknown.

This article focuses on the Revolutionary period of Colonial Williamsburg when candles were a primary light source in homes. At this time in history there were four primary substances used in making candles, spermaceti, tallow, beeswax, and myrtle or bayberry wax. The three latter substances were produced in Virginia. Methods of making these candles and how they were shaped are described in the article.

The fun filled journey you take when you burn a Prize Candle speaks to your sense of sight, smell & touch.

Through the knowledge of himself he was able to realize the not only the candle is real but the same regardless of it being melted.

Incomplete Combustion Reaction: fuel + O2 —> CO2 + H2O + CO + C(soot) Conclusion: The purpose of the candle lab is to determine what aspect of incomplete combustions the experiment has shown. In the first experiment, it showed that the candle needs full in order to burn. The candle didn't have fuel because of the tinfoil surrounding the wick it cut off the supply of wax to keep it burning.

The purpose of this lab was to observe the burning of a candle and to determine the rate at which a candle burns. In order to begin, we tightened our candle into the clay located in a weight boat. Then, we measured the initial height and mass. The original height was 8.5 cm. The original mass was 9.26 g. In addition, we noted that the candle was made of wax, had a spiral pattern, was pink with white stripes, and had a pencil-like shape.

The candles were labeled and set up on a higher platform so the extra wax would cause the time that it was burning for. We used stubby candles so I wasn't sure how long they would burn for. The candles were lit and if the candles increasingly burned then we would take a picture and write the results down. Cardboard, lighter, fat candle holders, and a pencil to write on the cardboard.

The white candles burn faster than blue candles, in our experiment we took two colors of candles white and blue, then burned them until there was no wax left. It took four trials to try and do this experiment and to get a good amount of results to compare. The white candle in all three trials burned faster than the blue one. In our hypothesis we thought that the blue candle would burn faster because the chemicals put into the candle to make the color would burn fatser. What actually happened was the white candle burned faster. I thought the white candle would burn slower because they are used for emergency candles when say the power goes out, well that's what people said ,but that's not what happened. So the white candle burned fastest and

Materials 1. Old candles 2. Orange and lemon zest 3. Molds 4. Something to melt the wax 5.

placed underneath this candle to catch any molten wax that drips off, although if it

As you can see, the places that you can put these remarkable candles are endless. As you think about it, you can see just how useful flameless candles can be and why they've become so popular.